The present disclosure relates to a hybrid lightweight brake disk and a method for producing the hybrid lightweight brake disk. The hybrid lightweight brake disk includes a brake chamber and a friction ring with at least one circular, outer friction surface. The method provides a brake chamber that includes a material containing an aluminum-forged alloy and a friction ring having a rapidly solidified aluminum alloy built up on an edge region of the brake chamber by using a laser deposition welding process or a 3D-printing process.